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Why it is dangerous to supply power to an unloaded series connected DC motor?
Wiki User
∙ 14y ago
Starting torque becomes very high due to which motor can attain very high speed and can damage its body and connected equipments.
Wiki User
∙ 14y ago
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Are thermostats in central heating systems usually connected into circuits in series or parallel?
In series. If they are connected in parallel then they won't cut off power supply when they switch off or when they open their contacts.
Is electric cooker connected in series or parallel?
All residential loads are connected in parallel, so that they share the same supply voltage, which is necessary for them to develop their rated power outputs.
Is a lamp a series circuit?
A single load doesn't really constitute either a series or a parallel circuit. You could argue that the lamp is in series with the supply, because the same current flows through both. But you could also argue that it is in parallel with the supply, as it shares the same voltage. So the terms 'series' and 'parallel' are only really used when to describe how two or more loads are connected to the supply.
Connected in series or parallel will each bulb glow brighter?
In parallel, each bulb will have full voltage applied across them. However, in series, the voltage across each bulb won't be the same as supply voltage. Thereby, bulbs connected in parallel will glow brighter.
Basic principle of commutator motor meter?
It is based dynamometer principle with ironless motor with a wound armature having a commutator. The two coils are connected in series with supply and armature coil is connected in parallel to it.
Why is dangerous to supply power to an unloaded series connected dc motor?
Starting torque becomes very high due to which motor can attain very high speed and can damage its body and connected equipments.
Why is it dangerous yo supply power to an unloaded series connected dc motor?
Starting torque becomes very high due to which motor can attain very high speed and can damage its body and connected equipments.Read more: Why_it_is_dangerous_to_supply_power_to_an_unloaded_series_connected_DC_motor
How do you connect an ammeter and voltmeter?
The voltmeter is connected across the supply and the ammeter is connected in series with the supply.
Can a DC series motor with speed control be connected on AC supply?
A dc series motor with speed control can be connected on ac supply because dc machines are totally reversible.
How can you measure the ampere or watt for power supply?
You can measure the current and power of a 'power supply', using an ammeter and a wattmeter. With the power supply connected to its load, the ammeter must be connected in series with the power supply's input. The wattmeter's current coil must also be connected in series with the power supply's input, and its voltage coil must be connected in parallel with the supply, taking the instrument's polarity markings into account.
Are thermostats in central heating systems usually connected into circuits in series or parallel?
In series. If they are connected in parallel then they won't cut off power supply when they switch off or when they open their contacts.
Are lamps in house connected to series or parallel?
They can be connected to either supply. A bulb in series that fails, will cause all the other bulbs to go out. A bulb in parallel that fails, will have no adverse effect on the other bulbs in that circuit
Is electric cooker connected in series or parallel?
All residential loads are connected in parallel, so that they share the same supply voltage, which is necessary for them to develop their rated power outputs.
How do you determine which windings are field on a series DC motor?
Both the supply wires that enter a series motor is the field windings the field is split in two and is connected at the split to the brushes that is connected to the commentator of the armature, so the current pass thru the first half of the field then thru the armature and then thru the other half of the field. With a parallel DC motor the two fields is in series and the two wires is connected to the brushes so is the supply.
What happens to the current of R1 connected in series with R2 when it is also connected in parallel with R3?
The current, if connected to a voltage source that can supply the needed current to (R1+R2) R3, will be unchanged. If the source cannot supply the needed current, the terminal voltage will decrease, which will change the current flowing through R1 and R2.
Is a lamp a series circuit?
A single load doesn't really constitute either a series or a parallel circuit. You could argue that the lamp is in series with the supply, because the same current flows through both. But you could also argue that it is in parallel with the supply, as it shares the same voltage. So the terms 'series' and 'parallel' are only really used when to describe how two or more loads are connected to the supply.
The voltage for 4 bulbs in a circuit?
The circuit voltage or the resistance of the individual bulb is needed to answer this question. Divide the total power (400 W) by the supply voltage.
